<template>
  <view class="cart-container" v-if="cart.length !== 0">

    <!-- 收获地址 -->
    <my-address></my-address>

    <!-- 购物车标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>

    <!-- 购物车列表 -->
    <uni-swipe-action>
      <block v-for="(goods, i) in cart" :key="i">
        <uni-swipe-action-item :rightOptions="rightOptions" @click="swipeActionClickHandler(goods)">

          <my-goods :goods="goods" :showRadio="true" @radio-change="radioChangeHandler" :showNum="true"
            @num-change="numberChangeHandler"></my-goods>
        </uni-swipe-action-item>
      </block>
    </uni-swipe-action>

    <!-- 结算栏 -->
    <my-settle></my-settle>

    <!-- 空白购物车区域 -->
    <view>购物车空白区</view>
  </view>
  <view class="empty-cart" v-else>
    <image src="/static/cart_empty@2x.png" class="empty-img"></image>
    <text class="tip-text">空空如也~</text>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {
    mapState,
    mapMutations
  } from 'vuex'

  export default {
    mixins: [badgeMix],
    data() {
      return {
        rightOptions: [{
          text: '删除', // 显示的文本内容
          style: {
            backgroundColor: '#C00000' // 按钮的背景颜色
          }
        }]
      };
    },
    computed: {
      ...mapState('m_cart', ['cart']),
    },
    methods: {
      ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),

      radioChangeHandler(e) {
        this.updateGoodsState(e)
      },
      numberChangeHandler(e) {
        this.updateGoodsCount(e)
        // this.setBadge()
      },
      swipeActionClickHandler(goods) {
        this.removeGoodsById(goods.goods_id)
      }
    }
  }
</script>

<style lang="scss">
  .cart-title {
    height: 80rpx;
    display: flex;
    align-items: center;
    padding-left: 12rpx;
    border-bottom: 1px solid #efefef;

    .cart-title-text {
      margin-left: 20rpx;
    }
  }

  .goods-item {
    // 让 goods-item 项占满整个屏幕的宽度
    width: 750rpx;
    // 设置盒模型为 border-box
    box-sizing: border-box;
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;
  }

  page {
    height: 100%;
  }

  .cart-container {
    background-color: white;
    height: 100%;
    padding-bottom: 50px;
    box-sizing: border-box;
  }

  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 150px;

    .empty-img {
      width: 90px;
      height: 90px;
    }

    .tip-text {
      font-size: 12px;
      color: gray;
      margin-top: 15px;
    }
  }
</style>
